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Panksep K, Tamm M, Mantzouki E, Rantala-Ylinen A, Laugaste R, Sivonen K, Tammeorg O, Kisand V. Using Microcystin Gene Copies to Determine Potentially-Toxic Blooms, Example from a Shallow Eutrophic Lake Peipsi. Toxins (Basel) 2020; 12:E211. [PMID: 32225013 PMCID: PMC7232469 DOI: 10.3390/toxins12040211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 03/20/2020] [Accepted: 03/24/2020] [Indexed: 11/16/2022] Open
Abstract
Global warming, paired with eutrophication processes, is shifting phytoplankton communities towards the dominance of bloom-forming and potentially toxic cyanobacteria. The ecosystems of shallow lakes are especially vulnerable to these changes. Traditional monitoring via microscopy is not able to quantify the dynamics of toxin-producing cyanobacteria on a proper spatio-temporal scale. Molecular tools are highly sensitive and can be useful as an early warning tool for lake managers. We quantified the potential microcystin (MC) producers in Lake Peipsi using microscopy and quantitative polymerase chain reaction (qPCR) and analysed the relationship between the abundance of the mcyE genes, MC concentration, MC variants and toxin quota per mcyE gene. We also linked environmental factors to the cyanobacteria community composition. In Lake Peipsi, we found rather moderate MC concentrations, but microcystins and microcystin-producing cyanobacteria were widespread across the lake. Nitrate (NO3-) was a main driver behind the cyanobacterial community at the beginning of the growing season, while in late summer it was primarily associated with the soluble reactive phosphorus (SRP) concentration. A positive relationship was found between the MC quota per mcyE gene and water temperature. The most abundant variant-MC-RR-was associated with MC quota per mcyE gene, while other MC variants did not show any significant impact.
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Affiliation(s)
- Kristel Panksep
- Chair of Hydrobiology and Fishery, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia
| | - Marju Tamm
- Chair of Hydrobiology and Fishery, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia
| | - Evanthia Mantzouki
- Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, 1205 Geneva, Switzerland
| | | | - Reet Laugaste
- Chair of Hydrobiology and Fishery, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia
| | - Kaarina Sivonen
- Department of Microbiology, University of Helsinki, 00014 Helsinki, Finland
| | - Olga Tammeorg
- Chair of Hydrobiology and Fishery, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia
- Ecosystems and Environmental Research Programme, University of Helsinki, 00014 Helsinki, Finland
| | - Veljo Kisand
- Chair of Hydrobiology and Fishery, Institute of Agricultural and Environmental Sciences, Estonian University of Life Sciences, 51006 Tartu, Estonia
- Institute of Technology, University of Tartu, 50411 Tartu, Estonia
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Burford MA, Carey CC, Hamilton DP, Huisman J, Paerl HW, Wood SA, Wulff A. Perspective: Advancing the research agenda for improving understanding of cyanobacteria in a future of global change. HARMFUL ALGAE 2020; 91:101601. [PMID: 32057347 DOI: 10.1016/j.hal.2019.04.004] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 04/05/2019] [Indexed: 05/19/2023]
Abstract
Harmful cyanobacterial blooms (=cyanoHABs) are an increasing feature of many waterbodies throughout the world. Many bloom-forming species produce toxins, making them of particular concern for drinking water supplies, recreation and fisheries in waterbodies along the freshwater to marine continuum. Global changes resulting from human impacts, such as climate change, over-enrichment and hydrological alterations of waterways, are major drivers of cyanoHAB proliferation and persistence. This review advocates that to better predict and manage cyanoHABs in a changing world, researchers need to leverage studies undertaken to date, but adopt a more complex and definitive suite of experiments, observations, and models which can effectively capture the temporal scales of processes driven by eutrophication and a changing climate. Better integration of laboratory culture and field experiments, as well as whole system and multiple-system studies are needed to improve confidence in models predicting impacts of climate change and anthropogenic over-enrichment and hydrological modifications. Recent studies examining adaptation of species and strains to long-term perturbations, e.g. temperature and carbon dioxide (CO2) levels, as well as incorporating multi-species and multi-stressor approaches emphasize the limitations of approaches focused on single stressors and individual species. There are also emerging species of concern, such as toxic benthic cyanobacteria, for which the effects of global change are less well understood, and require more detailed study. This review provides approaches and examples of studies tackling the challenging issue of understanding how global changes will affect cyanoHABs, and identifies critical information needs for effective prediction and management.
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Affiliation(s)
- M A Burford
- Australian Rivers Institute, and School of Environment and Science, Griffith University, Queensland, 4111, Australia.
| | - C C Carey
- Department of Biological Sciences, Virginia Tech, Blacksburg, Virginia, 24061, USA
| | - D P Hamilton
- Australian Rivers Institute, and School of Environment and Science, Griffith University, Queensland, 4111, Australia
| | - J Huisman
- Department of Freshwater and Marine Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, the Netherlands
| | - H W Paerl
- Institute of Marine Sciences, University of North Carolina at Chapel Hill, Morehead City, NC, 28557, USA; College of Environment, Hohai University, Nanjing, 210098, China
| | - S A Wood
- Cawthron Institute, Nelson, 7010, New Zealand
| | - A Wulff
- Department of Biological and Environmental Sciences, University of Gothenburg, Box 461, 40530, Gothenburg, Sweden
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Mantzouki E, Beklioǧlu M, Brookes JD, Domis LNDS, Dugan HA, Doubek JP, Grossart HP, Nejstgaard JC, Pollard AI, Ptacnik R, Rose KC, Sadro S, Seelen L, Skaff NK, Teubner K, Weyhenmeyer GA, Ibelings BW. Snapshot Surveys for Lake Monitoring, More Than a Shot in the Dark. Front Ecol Evol 2018; 6. [PMID: 32185176 PMCID: PMC7077876 DOI: 10.3389/fevo.2018.00201] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Evanthia Mantzouki
- Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Geneva, Switzerland
| | - Meryem Beklioǧlu
- Limnology Laboratory, Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - Justin D Brookes
- Department of Environmental Biology, The University of Adelaide, Adelaide, SA, Australia
| | - Lisette Nicole de Senerpont Domis
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, Netherlands.,Department of Environmental Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Hilary A Dugan
- Center for Limnology, University of Wisconsin-Madison, Madison, WI, United States
| | - Jonathan P Doubek
- Rubenstein Ecosystem Science Laboratory, University of Vermont, Burlington, VT, United States
| | - Hans-Peter Grossart
- Department of Experimental Limnology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Stechlin, Germany.,Faculty of Mathematics and Natural Sciences, Institute of Biochemistry and Biology, Potsdam University, Potsdam, Germany
| | - Jens C Nejstgaard
- Department of Experimental Limnology, Leibniz Institute of Freshwater Ecology and Inland Fisheries, Stechlin, Germany
| | - Amina I Pollard
- Office of Water, US Environmental Protection Agency, Washington, DC, United States
| | - Robert Ptacnik
- WasserCluster Lunz, Biologische Station GmbH, Lunz am See, Austria
| | - Kevin C Rose
- Department of Biological Sciences, Rensselaer Polytechnic Institute, Troy, NY, United States
| | - Steven Sadro
- Department of Environmental Science and Policy, University of California, Davis, Davis, CA, United States
| | - Laura Seelen
- Department of Aquatic Ecology, Netherlands Institute of Ecology (NIOO-KNAW), Wageningen, Netherlands.,Department of Environmental Sciences, Wageningen University & Research, Wageningen, Netherlands
| | - Nicholas K Skaff
- Department of Fisheries and Wildlife, Michigan State University, East Lansing, MI, United States
| | - Katrin Teubner
- Department of Limnology and Bio-Oceanography, Faculty of Life Sciences, University of Vienna, Vienna, Austria
| | - Gesa A Weyhenmeyer
- Department of Ecology and Genetics/Limnology, Uppsala University, Uppsala, Sweden
| | - Bastiaan W Ibelings
- Department F.-A. Forel for Environmental and Aquatic Sciences, University of Geneva, Geneva, Switzerland
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